After promising "fireworks" in the offseason and watching sparklers go off in Cleveland, Miami and Minnesota, Grousbeck is now preaching patience for Celtics fans faced with another season of watching a rebuilding team.

The C's have first-round picks Marcus Smart and James Young and made minor deals for depth in Zeller and Turner.

More from Grousbeck's conversation with Washburn:

“I said we’d try for fireworks and we tried. I’m reasonably content that first of all we tried as hard as we could and second of all we added some good pieces. But we have maintained our draft picks and we’ve maintained more building in the future as opposing to firing all the bullets now.

“How happy do I look? We were all patient, everybody, the fans were patient in the early 2000s and we have to believe they know how to build in the NBA isn’t a quick flip of the switch. In almost all cases, it is years of preparation in this league.

“You gotta get the superstars, so you’ve got to build up the assets to get them and that’s what we’re trying to do.”